Humboldt BaykeeperHumboldt Baykeeper is working to protect and enhance Humboldt Bay and near-shore waters through community education, water-quality monitoring and pollution control.
Humboldt Bay Mycological SocietyInformation and discussion group for local mushroom enthusiasts.
Schatz Energy Research CenterResearch center for alternative energy engineering, including hydrogen and fuel cell research, at Humboldt State University. Arcata.
Friends of the Arcata MarshInformation support group for the Arcata Marsh Wildlife Sanctuary.
Californians for Alternatives to ToxicsEureka.
Bureau of Land Management, Arcata Field OfficeResponsible for the administration of natural resources, lands, and mineral programs on 200,000 acres of public land in Northwestern California, including the King Range National Conservation Area.
North Coast Chapter of the California Native Plant SocietyAn organization of amateurs and professionals dedicated to the preservation of California's native flora. Arcata.
Green WheelsInformation on sustainable transportation options including buses, bikes, and rideshare links. Advocacy organization for developing sustainable transportation.